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| // // XMLParser.m // Test // // Created by wuyingqiang on 7/19/15. // Copyright (c) 2015 wuyingqiang. All rights reserved. //
#import "XMLParser.h"
/* * define the parsing mode * */ typedef NS_ENUM(NSInteger, ParseMode) { ParseModeByData = 1, ParseModeByString = 2, ParseModeByURL = 3, ParseModeByXMLParser= 4 };
typedef void (^parseDoneBlock)(NSDictionary *data);
@interface XMLParser() <NSXMLParserDelegate>
/* block , which is for complete operation */ @property (nonatomic, weak) parseDoneBlock parseCompleteNow;
/* data from source */ @property (nonatomic, strong) NSData *data; /* url of network */ @property (nonatomic, strong) NSURL *Url;
/* xml operation stack */ @property (nonatomic, strong) NSMutableArray *elementStack;
/* character of finding */ @property (nonatomic, strong) NSMutableString *textGet;
/* xml which array closed */ @property (nonatomic) BOOL close;
- (void)setURL:(NSString *)urlString; - (void)startWithParseMode:(ParseMode)mode comcompleteBlock:(void (^)(NSDictionary *))parseCompleted dataSource:(NSObject *)source arrayClosed:(BOOL) close;
@end @implementation XMLParser
#pragma mark - Class Method.
/* class method in no dictionary close in array mode. * * SUCH AS: * <data> * <current_condition> * <cloudcover>16</cloudcover> * <humidity>59</humidity> * <observation_time>09:09 PM</observation_time> * <precipMM>0.1</precipMM> * <pressure>1010</pressure> * <temp_C>10</temp_C> * <temp_F>49</temp_F> * <visibility>10</visibility> * <weatherCode>113</weatherCode> * <weatherDesc> * <Value>Clear</Value> * </weatherDesc> * <weatherIconUrl> * <value> * http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0008_clear_sky_night.png * </value> * </weatherIconUrl> * <winddir16Point>NW</winddir16Point> * <winddirDegree>316</winddirDegree> * <windspeedKmph>47</windspeedKmph> * <windspeedMiles>29</windspeedMiles> * </current_condition> * * ---------------------------------------------------------------------------------------------------------------- * After `DICTIONARY IN ARRAY` parsing: * * data = { * "current_condition" = [ * { * cloudcover = 16; * humidity = 59; * "observation_time" = "09:09 PM"; * precipMM = "0.1"; * pressure = 1010; * "temp_C" = 10; * "temp_F" = 49; * visibility = 10; * weatherCode = 113; * weatherDesc = [ * { * value = Clear; * } * ]; * weatherIconUrl = [ * { * value = "http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0008_clear_sky_night.png"; * } * ]; * winddir16Point = NW; * winddirDegree = 316; * windspeedKmph = 47; * windspeedMiles = 29; * } * ]; * * --------------------------------------------------------------------------------------------------------------- * Without `DICTIONARY IN ARRAY` parsing: * * * data = { * "current_condition" = { * cloudcover = 16; * humidity = 59; * "observation_time" = "09:09 PM"; * precipMM = "0.1"; * pressure = 1010; * "temp_C" = 10; * "temp_F" = 49; * visibility = 10; * weatherCode = 113; * weatherDesc = { * value = Clear; * } * weatherIconUrl = { * value = "http://www.worldweatheronline.com/images/wsymbols01_png_64/wsymbol_0008_clear_sky_night.png"; * }; * winddir16Point = NW; * winddirDegree = 316; * windspeedKmph = 47; * windspeedMiles = 29; * }; * * ------------------------------------------------------------------------------------------------------------ * */
// generation mode + (void)xmlParseByData:(NSData *)data completeBlock:(void (^)(NSDictionary *))parseCompleted {
[[[XMLParser alloc] init] startWithParseMode:ParseModeByData comcompleteBlock:parseCompleted dataSource:data arrayClosed:NO]; } + (void)xmlParseByURL:(NSURL *)url completeBlock:(void (^)(NSDictionary *))parseCompleted {
[[[XMLParser alloc] init] startWithParseMode:ParseModeByURL comcompleteBlock:parseCompleted dataSource:url arrayClosed:NO]; } + (void)xmlParseWithURLByString:(NSString *)stringOfURL completeBlock:(void (^)(NSDictionary *))parseCompleted {
NSURL *url = [NSURL URLWithString:stringOfURL];
[XMLParser xmlParseByURL:url completeBlock:parseCompleted];
} + (void)xmlParseWithXMLParser:(NSXMLParser *)parser completeBlock:(void (^)(NSDictionary *))parseCompleted { [[[XMLParser alloc] init] startWithParseMode:ParseModeByXMLParser comcompleteBlock:parseCompleted dataSource:parser arrayClosed:NO]; }
// `dictionary in array` mode + (void)xmlParseByData:(NSData *)data completeBlock:(void (^)(NSDictionary *))parseCompleted dictionaryCloseInArray:(BOOL)close { [[[XMLParser alloc] init] startWithParseMode:ParseModeByData comcompleteBlock:parseCompleted dataSource:data arrayClosed:close]; } + (void)xmlParseByURL:(NSURL *)url completeBlock:(void (^)(NSDictionary *))parseCompleted dictionaryCloseInArray:(BOOL)close {
[[[XMLParser alloc] init] startWithParseMode:ParseModeByURL comcompleteBlock:parseCompleted dataSource:url arrayClosed:close]; } + (void)xmlParseWithURLByString:(NSString *)stringOfURL completeBlock:(void (^)(NSDictionary *))parseCompleted dictionaryCloseInArray:(BOOL)close {
NSURL *url = [NSURL URLWithString:stringOfURL];
[XMLParser xmlParseByURL:url completeBlock:parseCompleted dictionaryCloseInArray:close];
} + (void)xmlParseWithXMLParser:(NSXMLParser *)parser completeBlock:(void (^)(NSDictionary *))parseCompleted dictionaryCloseInArray:(BOOL)close {
[[[XMLParser alloc] init] startWithParseMode:ParseModeByXMLParser comcompleteBlock:parseCompleted dataSource:parser arrayClosed:close]; }
#pragma mark - Private Method. - (void)setURL:(NSString *)urlString /* * set the URL * */ {
[self setUrl:[NSURL URLWithString:urlString]]; }
- (void)startWithParseMode:(ParseMode)mode comcompleteBlock:(void (^)(NSDictionary *))parseCompleted dataSource:(NSObject *)source arrayClosed:(BOOL) close /* * start to parsing ... * */ {
NSXMLParser *parse; _close = close;
/* block */ _parseCompleteNow = parseCompleted;
/* set the parse mode */ switch (mode) { case ParseModeByData: { NSData *data = (NSData *)source; parse = [[NSXMLParser alloc] initWithData:data]; } break; case ParseModeByURL: { NSURL *url = (NSURL *)source; parse = [[NSXMLParser alloc] initWithContentsOfURL:url];
} case ParseModeByXMLParser: {
parse = (NSXMLParser *)source; } break; default: break; }
[self startWithParseInstance:parse];
} - (void)startWithParseInstance:(NSXMLParser *)parse {
parse.delegate = self; [parse parse]; }
#pragma mark - XML parse Delegate - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict {
/* get the parent dictionary */ NSMutableDictionary *parentDict = [_elementStack lastObject]; NSObject *elementFound = [parentDict objectForKey:elementName];
/* if not exist */ if(!elementFound) {
NSMutableDictionary *childDict = [NSMutableDictionary new]; [parentDict setObject:childDict forKey:elementName];
[_elementStack addObject:childDict];
} else {/* exist this key, means this is array, not dictionary */
/* start from array */ if( [elementFound isKindOfClass:[NSMutableDictionary class]]) {
NSMutableArray *childs = [NSMutableArray new]; [childs addObject:elementFound];
[parentDict setObject:childs forKey:elementName];
[childs addObject:[NSMutableDictionary new]]; [_elementStack addObject:[childs lastObject]]; }
else {
/* continue from array */ NSMutableDictionary *childDict = [NSMutableDictionary new]; NSMutableArray *items = (NSMutableArray *)elementFound;
[items addObject:childDict];
[_elementStack addObject:childDict];
} }
} - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{
/* has found the text */ if( [self.textGet length] > 0) {
[_elementStack removeLastObject]; NSMutableDictionary *item = [_elementStack lastObject];
[item setObject:_textGet forKey:elementName]; _textGet = [NSMutableString new];
} else {
[_elementStack removeLastObject];
if (_close) { // when open the <close in Array> mode
id value = [[_elementStack lastObject] valueForKey:elementName]; if ([value isKindOfClass:[NSDictionary class]]) {
NSMutableArray *arrayClose = [NSMutableArray array]; [arrayClose addObject:value];
[[_elementStack lastObject] setValue:arrayClose forKey:elementName]; } }
}
} - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string {
if([string hasPrefix:@"\n"]) return ;
[_textGet appendString:string]; }
- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError {
/* something error */ NSLog(@"%@", parseError); } - (void)parserDidStartDocument:(NSXMLParser *)parser /* start to parse */ {
_elementStack = [NSMutableArray new]; _textGet = [NSMutableString new];
[_elementStack addObject:[NSMutableDictionary new]]; }
- (void)parserDidEndDocument:(NSXMLParser *)parser { /* parse done */ NSLog(@"fater parse:\n %@", [_elementStack lastObject]);
NSDictionary *compeltedData = [_elementStack lastObject];
/* second dealing */ compeltedData = [self settingArrayClosed:compeltedData];
self.parseCompleteNow(compeltedData); }
#pragma mark - Class Dead - (void)dealloc { NSLog(@"xml class dead"); }
#pragma mark - setting array closed - (NSDictionary *)settingArrayClosed:(NSDictionary *)result {
/* first, find the main key */ NSString *key = [result allKeys][0];
/* second, start to close */ NSDictionary *start = @{ key : [result valueForKey:key][0] };
return start; }
@end
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